Kotlin Error: "Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.5.1, expected version is 1.1.15"

Hi everyone! I'm a beginner in Android development, using Kotlin and Flutter. After updating Gradle and adding the Stripe library (payments) to the project, I encountered a build error:\n\n```\nModule was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.5.1, expected version is 1.1.15\n```\n\nI'm working on an online store app. Here's my `build.gradle` (project level):\n\n```kotlin\nbuildscript {\n ext.kotlin_version = '1.3.72'\n repositories {\n google()\n jcenter()\n }\n dependencies {\n classpath 'com.android.tools.build:gradle:4.1.0'\n classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlin_version"\n }\n}\n```\n\nAnd in the app module's `build.gradle`, I have these dependencies:\n\n```kotlin\ndep